CN205562330U - Be applicable to core sample stripping gas measuring equipment - Google Patents
Be applicable to core sample stripping gas measuring equipment Download PDFInfo
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- CN205562330U CN205562330U CN201620212291.5U CN201620212291U CN205562330U CN 205562330 U CN205562330 U CN 205562330U CN 201620212291 U CN201620212291 U CN 201620212291U CN 205562330 U CN205562330 U CN 205562330U
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Abstract
The utility model relates to a be applicable to core sample stripping gas measuring equipment, including control system, a measurement section of thick bamboo, gas cylinder, saturated salt water receptacle, self sealss sample can and heating furnace, it connects and is connected to saturated salt water receptacle through corresponding pipeline through first gas circuit the control unit to measure a section of thick bamboo and gas cylinder bottom, it has level sensor to measure section of thick bamboo interior arrangement, the gas cylinder top is connected with pressure sensor, and the gas cylinder top is connected with flow controller, manometer, surge damping valve and air pump through corresponding pipeline through third gas circuit the control unit in order, and the gas cylinder top is connected with vacuum water pump and gas collection mouth through corresponding pipeline through fourth gas circuit the control unit in order, and the gas cylinder top is connected to through the 5th gas circuit the control unit through corresponding pipeline the self sealss sample can. The utility model discloses compact structure, it is high to detect the precision, and reliable and stable, gas can be collected and be used for follow -up analytical work, and measuring result can be accurate to 0.1 milliliter.
Description
Technical field
This utility model relates to a kind of measurement equipment, is applicable to core sample stripping gas particularly to one and measures equipment.
Background technology
Shale gas and coal bed gas are current wide valued unconventional gas resources, and its occurrence status all can be summarized as absorption
Gas, free gas and solution gas.Difference is that shale lithology totally fine and close, alternating layers or interlayer are grown, and its form is to store
Free gas in intrinsic fracture and intergranular pore and absorption are main at the adsorbed gas of kerogen, clay particle surface, and coal seam
Gas then primary attachment is at matrix of coal particle surface.But no matter in shale gas or coal bed gas, it is difficult under normal temperature condition to discharge
Adsorbed gas all occupies very big proportion.The most quickly, the total air content of the sample of desorbing adsorbed gas, and then Accurate Determining thoroughly is
Amount of natural gas in estimation coal petrography, mud shale, sand streak, it is ensured that coal bed gas and shale gas RESERVE EVALUATION result accuracy
Key point.At present, the most stable, accurately and fast, easy, durable coal bed gas and shale gas air content measure
Special equipment.Therefore, designing a accuracy of detection high, compact conformation, reliable and stable core sample stripping gas measures equipment
It it is research purpose of the present utility model.
Utility model content
The weak point existed for above-mentioned prior art, this utility model is to provide one to be applicable to core sample stripping gas
Measurement equipment, it is possible to effectively solve the problem that above-mentioned prior art exists.
The technical solution of the utility model is as follows: one be applicable to core sample stripping gas measure equipment, including control system,
Measuring cylinder, gas collecting jar with ground-on cover plate, saturated common salt water container, self sealss sample jar and heating furnace, connect bottom described measuring cylinder and gas collecting jar with ground-on cover plate
Lead to connect and be connected to described saturated common salt water container, described measuring cylinder top by corresponding pipeline through the first gas circuit control unit
Portion is connected to the top of described gas collecting jar with ground-on cover plate by corresponding pipeline through the second gas circuit control unit, the internal dress of described measuring cylinder
It is equipped with corresponding liquid level sensor；Described gas collecting jar with ground-on cover plate top connects a pressure transducer, and gas collecting jar with ground-on cover plate top is by corresponding pipe
Lu Jing tri-gas circuit control unit has been linked in sequence flow controller, Pressure gauge, pressure maintaining valve and air pump, described gas collecting jar with ground-on cover plate top
Portion has been linked in sequence vacuum pump by corresponding pipeline through the 4th gas circuit control unit and has collected QI KOU, and gas collecting jar with ground-on cover plate top is passed through
Corresponding pipeline is connected to described self sealss sample jar through the 5th gas circuit control unit, and described self sealss sample jar is positioned over described
Inside heating furnace；Described first gas circuit control unit, the second gas circuit control unit, the 3rd gas circuit control unit, the 4th gas circuit
Control unit, the 5th gas circuit control unit, liquid level sensor, pressure transducer, flow controller, air pump and vacuum pump
It is all connected to described control system.
This utility model also includes that ambient temperature measuring device, described ambient temperature measuring device are connected to described control system.
Implement the technical solution of the utility model, have the advantages that this utility model can simulated formation temperature or brill
Well liquid temp condition carries out desorbing to rock core, and directly measures the cumulative volume of stripping gas, shows in real time and records desorbing
Air volume over time, and finally gives gas volume and cumulative volume in the unit interval, and accuracy of detection is high, compact conformation,
Reliable and stable, gas can be collected and work for subsequent analysis, and measurement result can be accurate to 0.1 milliliter.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, to this practicality
Novel it is described in further detail.
With reference to Fig. 1, one is applicable to core sample stripping gas and measures equipment, including control system 1, measuring cylinder 13, gas collection
Cylinder 14, saturated common salt water container 16, self sealss sample jar 18 and heating furnace 19, described measuring cylinder 13 and gas collecting jar with ground-on cover plate 14 end
Portion's connection connects and is connected to described saturated common salt water container 16, institute by corresponding pipeline through the first gas circuit control unit 17
State measuring cylinder 13 top and be connected to the top of described gas collecting jar with ground-on cover plate 14 by corresponding pipeline through the second gas circuit control unit 11
Portion, described measuring cylinder 13 interior arrangement has corresponding liquid level sensor 12, and described gas collecting jar with ground-on cover plate 14 top connects has a pressure to pass
Sensor 10, gas collecting jar with ground-on cover plate 14 top has been linked in sequence flow controller through the 3rd gas circuit control unit 6 by corresponding pipeline
5, Pressure gauge 4, pressure maintaining valve 3 and air pump 2, described gas collecting jar with ground-on cover plate 14 top controls single by corresponding pipeline through the 4th gas circuit
Unit 7 has been linked in sequence vacuum pump 8 and has collected QI KOU 9, and gas collecting jar with ground-on cover plate 14 top is controlled through the 5th gas circuit by corresponding pipeline
Unit 15 is connected to described self sealss sample jar 18, and it is internal that described self sealss sample jar 18 is positioned over described heating furnace 19；
Described first gas circuit control unit the 17, second gas circuit control unit the 11, the 3rd gas circuit control unit the 6, the 4th gas circuit controls single
Unit's the 7, the 5th gas circuit control unit 15, liquid level sensor 12, pressure transducer 10, flow controller 5, air pump 2 and true
Empty water pump 8 is all connected to described control system 1.This core sample stripping gas is measured equipment and is also included ambient temperature measuring device
20, described ambient temperature measuring device 20 is connected to described control system 1.
Workflow step of the present utility model is as follows:
1) saturated aqueous common salt is injected in measuring cylinder 13 and gas collecting jar with ground-on cover plate 14: control the first gas circuit by control system 1 and control single
Unit's the 17, second gas circuit control unit the 11, the 4th gas circuit control unit 7 and vacuum pump 8 start, and make the saturated common salt water capacity
Saturated aqueous common salt in device 16 enters measuring cylinder 13 and gas collecting jar with ground-on cover plate 14, after reaching preset water level, closes the first gas circuit and controls single
Unit's the 17, second gas circuit control unit the 11, the 4th gas circuit control unit 7 and vacuum pump 8 are (when this process only need to use for the first time
Carry out once-through operation, without carrying out the injecting process again when being normally carried out sample desorbing)；
2) calibration facility: control the 3rd gas circuit control unit 6, flow controller 5 and air pump 2 by control system 1 and start,
Pressure maintaining valve 3 steady pressure, Pressure gauge 4 shows corresponding pressure, and flow controller 5 exports gas to collection by the flow preset
In inflator 14, simulation core stripping gas measures, and the numerical value recorded and the relative deviation of standard value meet industry standard i.e.
Expression equipment is normal, can carry out unknown rock core stripping gas and measure；
3) dress sample: will put in self sealss sample jar 18 after desorbing samples weighing, and fill up saturated aqueous common salt, build sealing
Lid, is placed in heating furnace 19；
4) heating desorption sample: heating furnace 19 heats, until the temperature that temperature reaches according to formation condition is preset keeps constant temperature,
Stripping gas enters gas collecting jar with ground-on cover plate 14 from gas circuit pipeline through the 5th gas circuit control unit 15, along with stripping gas increasing in gas collecting jar with ground-on cover plate 14
Adding, the saturated aqueous common salt liquid level in gas collecting jar with ground-on cover plate 14 begins to decline, and the saturated aqueous common salt liquid level in measuring cylinder 13 begins to ramp up；
5) desorption data processes: in the measuring cylinder 13 that liquid level sensor 12 will detect, the change of liquid level changes into the signal of telecommunication
Giving control system 1 to process, control system 1 is by entering with pressure transducer 10, the data of environment measuring apparatus 20
Row obtains the stripping gas volume of standard atmosphere pressure after calculating, the volume of detection stripping gas is by reading the distance that liquid level rises
Calculating, taking measuring cylinder 13 inside radius is r, and liquid level lifting height is h, and minimum change accuracy of measurement is 0.1mm (body
Amass as V=π r2h)；
6) emptying stripping gas, circulating desorption: when the liquid level of measuring cylinder 13 reaches default high water level, closes the 5th gas circuit
Control unit 15, is again started up the 4th gas circuit control unit 7 and vacuum pump 8, makes the saturated aqueous common salt in measuring cylinder 13
Coming back in gas collecting jar with ground-on cover plate 14, measuring cylinder 13 liquid level closes the 4th gas circuit control unit 7 He while returning to preset low water level
Vacuum pump 8, starts the 5th gas circuit control unit 15, and (this process is back and forth carried out, therefore to carry out the measurement of stripping gas
The detection limit of stripping gas does not has the restriction of maximum, decides whether according to demand to collect expellant gas from collection QI KOU 9)；
7) terminate to analyze: after the release of rock core all solutions air-breathing finishes, turn off the 5th gas circuit control unit 15, start the 4th
Gas circuit control unit 7 and vacuum pump 8, make the saturated aqueous common salt in measuring cylinder 13 come back in gas collecting jar with ground-on cover plate 14, measures
Cylinder 13 liquid levels close the 4th gas circuit control unit 7 and vacuum pump 8 while returning to preset low water level, and analysis terminates, and wait
Analyze test next time.
The above is only preferred implementation of the present utility model, it is noted that for the ordinary skill people of the art
For Yuan, on the premise of without departing from this utility model principle, it is also possible to make some improvements and modifications, these improve and profit
Decorations also should be regarded as protection domain of the present utility model.
Claims (2)
1. one kind is applicable to core sample stripping gas measurement equipment, including control system, measuring cylinder, gas collecting jar with ground-on cover plate, saturated common salt water container, self sealss sample jar and heating furnace, it is characterized in that: described measuring cylinder connects with connecting bottom gas collecting jar with ground-on cover plate and is connected to described saturated common salt water container by corresponding pipeline through the first gas circuit control unit, described measuring cylinder top is connected to the top of described gas collecting jar with ground-on cover plate by corresponding pipeline through the second gas circuit control unit, and described measuring cylinder interior arrangement has corresponding liquid level sensor；Described gas collecting jar with ground-on cover plate top connects a pressure transducer, gas collecting jar with ground-on cover plate top has been linked in sequence flow controller, Pressure gauge, pressure maintaining valve and air pump through the 3rd gas circuit control unit by corresponding pipeline, described gas collecting jar with ground-on cover plate top has been linked in sequence vacuum pump by corresponding pipeline through the 4th gas circuit control unit and has collected QI KOU, gas collecting jar with ground-on cover plate top is connected to described self sealss sample jar by corresponding pipeline through the 5th gas circuit control unit, and described self sealss sample jar is positioned over described inside heating furnace；Described first gas circuit control unit, the second gas circuit control unit, the 3rd gas circuit control unit, the 4th gas circuit control unit, the 5th gas circuit control unit, liquid level sensor, pressure transducer, flow controller, air pump and vacuum pump are all connected to described control system.
One the most according to claim 1 is applicable to core sample stripping gas and measures equipment, it is characterised in that: also include that ambient temperature measuring device, described ambient temperature measuring device are connected to described control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620212291.5U CN205562330U (en) | 2016-03-17 | 2016-03-17 | Be applicable to core sample stripping gas measuring equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620212291.5U CN205562330U (en) | 2016-03-17 | 2016-03-17 | Be applicable to core sample stripping gas measuring equipment |
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| CN205562330U true CN205562330U (en) | 2016-09-07 |
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| CN201620212291.5U Active CN205562330U (en) | 2016-03-17 | 2016-03-17 | Be applicable to core sample stripping gas measuring equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107014717A (en) * | 2017-03-29 | 2017-08-04 | 铜仁中能天然气有限公司 | The method of testing and its device of gas gas desorption quantity are lost in a kind of shale gas well |
| CN107462491A (en) * | 2017-09-16 | 2017-12-12 | 中国地质大学（武汉） | A kind of full-automatic shale air content test system and method |
| CN117309086A (en) * | 2023-07-06 | 2023-12-29 | 中国地质大学（北京） | Measuring cylinder device suitable for shale gas desorption |
-
2016
- 2016-03-17 CN CN201620212291.5U patent/CN205562330U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107014717A (en) * | 2017-03-29 | 2017-08-04 | 铜仁中能天然气有限公司 | The method of testing and its device of gas gas desorption quantity are lost in a kind of shale gas well |
| CN107014717B (en) * | 2017-03-29 | 2024-04-12 | 上海瑞达峰致能源科技股份有限公司 | Method and device for testing desorption gas amount of lost gas in shale gas well |
| CN107462491A (en) * | 2017-09-16 | 2017-12-12 | 中国地质大学（武汉） | A kind of full-automatic shale air content test system and method |
| CN107462491B (en) * | 2017-09-16 | 2023-09-19 | 中国地质大学（武汉） | Full-automatic shale gas content testing system and method |
| CN117309086A (en) * | 2023-07-06 | 2023-12-29 | 中国地质大学（北京） | Measuring cylinder device suitable for shale gas desorption |
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